CN103736227A - Pressure-maintaining type firefighting system - Google Patents
Pressure-maintaining type firefighting system Download PDFInfo
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- CN103736227A CN103736227A CN201310733435.2A CN201310733435A CN103736227A CN 103736227 A CN103736227 A CN 103736227A CN 201310733435 A CN201310733435 A CN 201310733435A CN 103736227 A CN103736227 A CN 103736227A
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Abstract
The invention relates to the technical field of water firefighting, and particularly relates to a ship firefighting pipeline system. In the system, a seawater/fresh water pressure tank for supplying domestic water or water for equipment on a ship and a water supply pump are adopted as a pressure tank and a water supply pump of a firefighting system, thus the purchasing cost and maintenance cost of the equipment are saved, and the cabin space occupied by the equipment is reduced; moreover, the start of a fire pump is controlled by a flow signal switch; and when a discharge device discharges water outside, the flow signal switch starts the fire pump, and the start time of the fire pump is shortened.
Description
Technical field
The present invention relates to water fire prevention field, specifically relate to a kind of ship's fire fighting pipe-line system.
Background technology
According to the 2.1.2/.1.1 of the 10th article of fire extinguishing of < < International Convention for the Safety of Life at Sea > > II chapter, require: 1,000 gross ton and above passenger boat, at least from any fire hydrant of interior location, can spray immediately one effective water column, and guarantee to continue water outlet by 1 desired automatically actuated fire pump; And the pressure of 2.1.6 fire hydrant requires:
For passenger boat:
4,000 total and above 0.4N/mm
2
4,000 total following 0.3N/mm
2
Conclude the designing requirement of the existing fire-fighting system that meets above-mentioned passenger boat requirement, have following two kinds of design forms:
Design form one: the supply-water pump of purchasing special fire-fighting pressure water tank and fire-fighting pressure water tank being supplied water, fire-fighting pressure water tank provides stable pressure water source to fire main, to meet " at least can spray immediately one effective water column from any fire hydrant of interior location " this requirement.Setting pressure switch on fire main pipe simultaneously, when fire hydrant water outlet causes pipeline water pressure to drop to setting value, pressure switch is signaled and is started fire pump, by fire pump, to fire main, supplied water, to meet " guaranteeing to continue water outlet by 1 desired automatically actuated fire pump " and the requirement of fire hydrant discharge pressure.
Design form two: adopt other sea water pump on ship to supply water to fire main, for example air-conditioning sea water pump, to meet " at least can spray immediately one effective water column from any fire hydrant of interior location " this requirement.Setting pressure switch on fire main pipe simultaneously, when fire hydrant water outlet causes pipeline water pressure to drop to setting value, pressure switch is signaled and is started fire pump, by fire pump, to fire main, supplied water, to meet " guaranteeing to continue water outlet by 1 desired automatically actuated fire pump " and the requirement of fire hydrant discharge pressure.
Design form one is that exhausted most boats and ships are adopted at present.But design and buying Special fire-fighting water pressure tank and supply-water pump, can directly improve equipment purchase cost, also increases the space of the shared cabin interior of water fire-fighting system simultaneously.And, because fire-fighting pressure water tank generally adopts compressed air inflation pressure accumulation, water in fire-fighting pressure water tank flows out after major part, hydraulic pressure in fire main pipe just drops to fire pump starting pressure setting value, now pressure activated switch fire pump, cause fire pump comparatively to lag behind start-up time, taken valuable Fire Fighting Time.
For design form two, the sea water pump (as air-conditioning sea water pump) supplying water to fire main owing to holding concurrently, under former normal condition, does not need non-stop run 24 hours every days; But because this sea water pump needs supply water to fire main for 24 hours, making sea water pump original system is also non-stop run in 24 hours, and this causes the waste of the energy, and accelerates the mechanical wear of this sea water pump.Also exist fire pump comparatively to lag behind start-up time, taken the problem of valuable Fire Fighting Time simultaneously.
Summary of the invention
For above-mentioned design form one, there is the problem that improves equipment purchase cost, increases the space of the shared cabin interior of water fire-fighting system, there is the waste of the energy in design form two, and the problem of the mechanical wear of quickening sea water pump, and design form one, the simultaneous fire pump of design form two comparatively lag behind start-up time, take the problem of valuable Fire Fighting Time, the invention provides a kind of protective voltage type fire-fighting system.
Described protective voltage type fire-fighting system comprises: sea-fresh water water pressure tank, and the supply-water pump that sea-fresh water water pressure tank is supplied water, fire main pipe, and connect successively the first pipeline of sea-fresh water water pressure tank, supply-water pump, fire main pipe; Part in the first pipeline between fire main pipe and sea-fresh water water pressure tank is communicated with the daily sea-fresh water pipe of domestic water on supply vessel or equipment water; Described fire main pipe is provided with the discharger (as fire hydrant) that allows the interior liquid of fire main pipe discharge; Described fire-fighting system also comprises the first check-valves, flow signal switch, fire pump; The first check-valves is arranged on the first pipeline between daily sea-fresh water pipe and fire main pipe; Flow signal switch can be measured (directly measure or indirectly measure) discharger at least when starting working, the flow signal of liquid in pipeline between discharger and the first check-valves; Fire pump is connected with fire main pipe, and the startup of flow signal switch controls fire pump; During fire pump work, the hydraulic pressure in its exit is greater than the hydraulic pressure in sea-fresh water water pressure tank exit.
Preferably, described flow signal switch is arranged on the first pipeline between the first check-valves and fire main pipe.
Preferably, described protective voltage type fire-fighting system also comprises the second check-valves on the first pipeline being arranged between flow signal switch and fire main pipe.
Preferably, the hydraulic pressure in described sea-fresh water water pressure tank exit is 4～5Bar, and during fire pump work, the hydraulic pressure in its exit is 7～9Bar.More excellent, during described fire pump work, the hydraulic pressure in its exit is 8Bar.
Prior art relatively, the beneficial effect of protective voltage type fire-fighting system of the present invention is as follows:
1, adopt on ship the sea-fresh water charging tank of domestic water on the former supply vessel having configured or equipment water and supply-water pump as charging tank and the supply-water pump of fire-fighting system, saved equipment purchase cost and maintenance cost, reduce space, hold facility cabin.
2, when adopting the fresh water hydrophore tank that has been configured on ship as the charging tank of fire-fighting system, liquid in the pipeline of fire-fighting system can replace with fresh water entirely, and then improves fire-fighting steel pipeline and be subject to corrosion condition, extends pipeline service life, save maintenance of the vessel cost, improve ship's fire fighting reliability.
3, existing design form all adopts the startup of pressure switch control fire pump, and when the fluid pressure drop in fire main pipe is when setting value, pressure switch just starts fire pump, causes fire pump comparatively to lag behind start-up time.And the present invention adopts the startup of flow signal switch control fire pump, during the outside draining of discharger, flow signal switch starts fire pump, thereby accelerates fire pump start-up time.
4, discharger, not externally during draining, only consumes a small amount of energy during flow signal switch, and sea-fresh water charging tank and supply-water pump relatively on its former supply vessel the state of domestic water or equipment water do not improve its energy consumption.Thereby discharger is externally during draining, protective voltage type fire-fighting system of the present invention can consume the extra energy hardly.
Accompanying drawing explanation
Fig. 1 is the structural representation of one of them embodiment of protective voltage type fire-fighting system of the present invention.
Description of reference numerals: 1-sea-fresh water water pressure tank, 2-supply-water pump, 3-fire main pipe, 4-the first pipeline, 5-fire hydrant, 6-the first check-valves, 7-flow signal switch, 8-fire pump, 9-the second check-valves, 10-day is used sea-fresh water pipe.
The specific embodiment
For the ease of it will be appreciated by those skilled in the art that the present invention is described further below in conjunction with accompanying drawing and embodiment.
Figure 1 shows that one of them embodiment of protective voltage type fire-fighting system of the present invention, described protective voltage type fire-fighting system comprises sea-fresh water water pressure tank 1, the supply-water pump 2 that sea-fresh water water pressure tank 1 is supplied water, fire main pipe 3, and connect successively the first pipeline 4 of sea-fresh water water pressure tank 1, supply-water pump 2, fire main pipe 3.
Described sea-fresh water water pressure tank 1, supply-water pump 2 are sea-fresh water water pressure tank, the supply-water pump for domestic water on supply vessel or equipment of original configuration on ship.Part in described the first pipeline 4 between fire main pipe 3 and sea-fresh water water pressure tank 1 is communicated with the daily sea-fresh water pipe 10 of domestic water on supply vessel or equipment water; Sea-fresh water in sea-fresh water water pressure tank 1 can provide to corresponding water supply point by daily sea-fresh water pipe 10.
Described fire main pipe 3 is provided with the discharger that allows the interior liquid of fire main pipe 3 discharge, and in the present embodiment, described discharger is fire hydrant 5.Described fire-fighting system also comprises the first check-valves 6, flow signal switch 7, fire pump 8.Described the first check-valves 6 is arranged on the first pipeline 4 between daily sea-fresh water pipe 10 and fire main pipe 3, for preventing that fire main pipe 3 fluid from flowing backward to sea-fresh water water pressure tank 1 or flowing into daily sea-fresh water pipe 10.Described flow signal switch 7 is arranged on the first pipeline 4 between the first check-valves 6 and fire main pipe 3, in the time of can avoiding like this hydraulic pressure reduction in daily sea-fresh water pipe 10 and/or sea-fresh water water pressure tank 1, flow signal switch 7 position pipeline inner fluids flow, thereby prevent that flow signal switch 7 from carrying out maloperation to fire pump 8.Described fire pump 8 is connected with fire main pipe 3, and it provides fire demand water to fire main pipe 3.Described flow signal switch 7 can be controlled the startup of fire pump 8, concrete, the output signal end of flow signal switch 7 is connected with the startup control cabinet relay of fire pump 8, and when flow signal switch 7 sends the mobile signal of fluid, described startup control cabinet relay starts fire pump 8.
When described fire pump 8 is worked, the hydraulic pressure in its exit is greater than the hydraulic pressure in sea-fresh water water pressure tank 1 exit.Concrete, the hydraulic pressure in described sea-fresh water water pressure tank 1 exit is 4～5Bar, when fire pump 8 is worked, the hydraulic pressure in its exit is 8Bar.The interior 5Bar compressed air that initially fills of described sea-fresh water water pressure tank 1, makes the hydraulic pressure in sea-fresh water water pressure tank 1 exit maintain 4～5Bar, that is to say that hydraulic pressure in sea-fresh water water pressure tank 1 is between 4Bar and 5Bar.When the interior fluid pressure drop of sea-fresh water water pressure tank 1 is to below 4Bar time, described supply-water pump 2 supplies water to sea-fresh water water pressure tank 1, until the interior hydraulic pressure of sea-fresh water water pressure tank 1 rises to 5Bar.
At fire hydrant 5 during in closure state, hydraulic pressure in fire main pipe 3 is provided by sea-fresh water water pressure tank 1, when the hydraulic pressure in fire main pipe 3 reaches 5Bar(, be the maximum that sea-fresh water water pressure tank 1 can provide hydraulic pressure) after, the first check-valves 6 cuts out, and the hydraulic pressure in fire main pipe 3 is not affected by sea-fresh water water pressure tank 1 exit or the interior hydraulic pressure of daily sea-fresh water pipe 10.
When fire hydrant 5 has just been opened, on fire hydrant 5, can spray immediately one effective water column, now the interior hydraulic pressure of fire main pipe 3 reduces, and sea-fresh water water pressure tank 1 supplies water to fire main pipe 3, meanwhile, flow signal switch 7 detects between fire hydrant 5 and the first check-valves 6 flow signal of liquid in pipeline, and signal is sent to and starts control cabinet relay, starting control cabinet relay starts fire pump 8, after fire pump 8 supplies water to fire main pipe 3, because the hydraulic pressure in fire pump 8 exits is higher than the hydraulic pressure in sea-fresh water water pressure tank 1 exit, the first check-valves 6 cuts out, by fire pump 8, provide fire main pipe 3 water of fire hydrant 5 when the opening backward, until fire pump 8 is by manual-lock, thereby meet, guarantee to continue water outlet by 1 desired automatically actuated fire pump.
Described protective voltage type fire-fighting system also comprises the second check-valves 9 on the first pipeline 4 being arranged between flow signal switch 7 and fire main pipe 3, to prevent in process that fire pump 8 supplies water to fire main pipe 3, affect flow signal switch 7, also further prevent that the fluid in fire main pipe 3 from flowing backward to sea-fresh water water pressure tank 1 or flowing into daily sea-fresh water pipe 10.
The above embodiment has only expressed one embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (5)
1. a protective voltage type fire-fighting system, is characterized in that: comprise sea-fresh water water pressure tank, and the supply-water pump that sea-fresh water water pressure tank is supplied water, fire main pipe, and connect successively the first pipeline of sea-fresh water water pressure tank, supply-water pump, fire main pipe; Part in the first pipeline between fire main pipe and sea-fresh water water pressure tank is communicated with the daily sea-fresh water pipe of domestic water on supply vessel or equipment water; Fire main pipe is provided with the discharger that allows the interior liquid of fire main pipe discharge; Described fire-fighting system also comprises the first check-valves, flow signal switch, fire pump; The first check-valves is arranged on the first pipeline between daily sea-fresh water pipe and fire main pipe; Flow signal switch can be measured discharger at least when starting working, the flow signal of liquid in pipeline between discharger and the first check-valves; Fire pump is connected with fire main pipe, and the startup of flow signal switch controls fire pump; During fire pump work, the hydraulic pressure in its exit is greater than the hydraulic pressure in sea-fresh water water pressure tank exit.
2. protective voltage type fire-fighting system according to claim 1, is characterized in that: described flow signal switch is arranged on the first pipeline between the first check-valves and fire main pipe.
3. protective voltage type fire-fighting system according to claim 2, is characterized in that: also comprise the second check-valves on the first pipeline being arranged between flow signal switch and fire main pipe.
4. protective voltage type fire-fighting system according to claim 1, is characterized in that: the hydraulic pressure in described sea-fresh water water pressure tank exit is 4～5Bar, and during fire pump work, the hydraulic pressure in its exit is 7～9Bar.
5. protective voltage type fire-fighting system according to claim 4, is characterized in that: during described fire pump work, the hydraulic pressure in its exit is 8Bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733435.2A CN103736227B (en) | 2013-12-25 | 2013-12-25 | A kind of protective voltage type fire-fighting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733435.2A CN103736227B (en) | 2013-12-25 | 2013-12-25 | A kind of protective voltage type fire-fighting system |
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| CN103736227A true CN103736227A (en) | 2014-04-23 |
| CN103736227B CN103736227B (en) | 2016-02-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211184A (en) * | 2017-12-15 | 2018-06-29 | 浙江海洋大学 | A kind of Sea-water fire-fighting is switched fast technological design with water |
| CN111001108A (en) * | 2019-12-23 | 2020-04-14 | 江苏扬子三井造船有限公司 | Marine spraying system |
| CN112245853A (en) * | 2020-11-03 | 2021-01-22 | 温州康陀信息技术有限公司 | Fireproof automatic spraying pressure maintaining device |
| CN113679985A (en) * | 2021-06-21 | 2021-11-23 | 招商局重工(深圳)有限公司 | Multistage pressure maintaining fire fighting device and control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211184A (en) * | 2017-12-15 | 2018-06-29 | 浙江海洋大学 | A kind of Sea-water fire-fighting is switched fast technological design with water |
| CN111001108A (en) * | 2019-12-23 | 2020-04-14 | 江苏扬子三井造船有限公司 | Marine spraying system |
| CN112245853A (en) * | 2020-11-03 | 2021-01-22 | 温州康陀信息技术有限公司 | Fireproof automatic spraying pressure maintaining device |
| CN113679985A (en) * | 2021-06-21 | 2021-11-23 | 招商局重工(深圳)有限公司 | Multistage pressure maintaining fire fighting device and control method |
| CN113679985B (en) * | 2021-06-21 | 2022-05-24 | 招商局重工(深圳)有限公司 | Multistage pressure maintaining fire fighting device and control method |
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|---|---|
| CN103736227B (en) | 2016-02-24 |
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Address after: Cheung Chau Street in Whampoa District of Guangzhou City, Guangdong Province, No. 188 510000 Patentee after: Middle ship Huangpu Wen Chong boats and ships Co., Ltd Address before: Cheung Chau Street in Whampoa District of Guangzhou City, Guangdong Province, No. 188 510000 Patentee before: CSSC Guangzhou Shipbuilding Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20191225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |